2EVI

Structure of a Ndt80-DNA complex (MSE mutant mA8T)

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1MNN	PDB 1MNN - MINUS DNA AT SEQUENCE CHANGES AND 1 BASEPAIR ADJACENT TO THOSE CHANGES

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	295	30% PEG 400, 50 mM bis-tris-propane pH 7.0, 100 mM NaCl, 50 mM CaCl2, and 2 mM DTT. 1:1 Molar ratio protein:DNA, protein at 10mg/ml, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.28	46.14

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.713	α = 90
b = 78.546	β = 90
c = 161.782	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	95	CCD	SBC-2		2001-12-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	1.0093	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.8	35	99.51			41252	41252

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.8	1.86	100

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	PDB 1MNN - MINUS DNA AT SEQUENCE CHANGES AND 1 BASEPAIR ADJACENT TO THOSE CHANGES	1.8	34.92	41252	41252	2081	99.51	0.174	0.174	0.172	0.211	RANDOM	16.669

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.536
r_scangle_it	2.79
r_scbond_it	1.837
r_mcangle_it	1.52
r_angle_refined_deg	1.448
r_angle_other_deg	0.991
r_mcbond_it	0.832
r_symmetry_hbond_refined	0.361
r_symmetry_vdw_other	0.296
r_nbd_other	0.239
r_symmetry_vdw_refined	0.198
r_nbd_refined	0.19
r_xyhbond_nbd_refined	0.189
r_nbtor_other	0.088
r_chiral_restr	0.085
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2417
Nucleic Acid Atoms	551
Solvent Atoms	313
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling